FR3102496A1 - Locking device for a sliding door - Google Patents

Abstract

Locking device of an opening with a closing upright (M) closing against another upright (D), able to change reversibly from a passive position to an active locking position, said device comprising at least two locking hooks (110, 111, 110 ', 111') and a locking rod (10, 10 '), and comprising a keeper (2) receiving said locking hooks, said locking rod being adapted to slide to allow said device to pass reversibly. from a passive position to an active locking position in which said two hooks are locked in said striker, one of said hooks being fixed (110, 110 ') and the other hook (111, 111') mounted so as to be movably connected to the sliding of said locking rod (10, 10 '), and said keeper (2, 20, 21, 21) configured to slide and integrally to the displacement of said movable hook (111, 111') when said movable hook is engaged in said spoils. Figure to be published with the abstract: Fig. 1

Description

Locking device for a sliding sash

The present invention relates to the field of locking devices provided for sliding door or window openings, and sliding openings equipped with such a device.

A known design of bays with sliding leaf in the building consists in forming a fixed frame with respect to the masonry over the entire circumference of a bay and in closing it by a movable leaf which slides in the plane of this frame forming a fixed frame. The frame may include guide rails allowing the sliding of the opening up to a frame upright against which the opening rests when the opening is completely closed. Alternatively, the sash upright can close against another mobile or fixed upright of the opening. These types of design are found especially in bay windows.

An upright of the sash which forms the closing upright, generally the front upright, namely the one which bears against another upright, for example a frame upright, in the closed position, is provided with locking means for so as to block the opening against said other upright when it is in the closed position. There are known locking devices with hooks in which the hooks carried by the closing post of the sash cooperate with latches hollowed out in a frame post. The hooks are attached to a locking rod which is mounted along the closing upright and which is movable along this upright by the action of an operating member attached to a lock case which is recessed on the sash and which comprises the mechanical means necessary to transform the action exerted on the operating member, for example by means of a handle, into a translational movement of the rod, which causes the rod and the hooks to pass a passive position to an active locking position in which the hooks lock into the corresponding receiving latches.

Such a design poses a risk of the possibility of break-in in violation of the locking device. A person could thus try to force the locking device by lifting the sash to release the hooks from the striker, or by sliding the rod carrying the hooks along the sash closing upright .

In order to improve the security of this type of locking, manufacturers try to design sash and frame jambs that have hollow profiled shapes so that the hook and the corresponding striker are not directly accessible from the outside.

The invention aims to provide an alternative to known locking devices which is particularly effective against burglary, in particular by an attempt to lift the opening.

To this end, the invention provides a device for locking an opening with a closing post closing against another post, able to pass reversibly from a passive position to an active locking position, said device comprising at least one male part, capable of being associated with the closing upright of the sash, comprising at least two locking hooks and a locking rod, and a female part, capable of being associated with said other upright, comprising a catch receiving said hooks locking, and said locking rod being adapted to slide to reversibly move said device from a passive position to an active locking position in which said two hooks are locked in said keeper. According to the invention, one of said hooks is fixed and the other hook is mounted so as to move integrally with the sliding of said locking rod, and said keeper is configured capable of sliding and integrally with the movement of said mobile hook when said mobile hook is engaged. in said waste.

More particularly, said locking rod is adapted to slide along the closing post of the opening associated with said male part of said device.

More particularly also, said keeper is adapted to slide along said other upright associated with the female part, against which closes the closing upright of the opening associated with said male part.

More particularly still, the locking device is provided for an opening able to slide vertically in its own plane.

The locking device according to the invention thus makes it possible, during locking, that is to say during the transition from the passive position to the active locking position, to drive the mobile hook in displacement during the sliding of said rod. actuated and consequently said striker, and this until said fixed hook is blocked in said striker, said two hooks then being blocked in said striker, position corresponding to the active locking position, so that the closing of the leaf is locked . The mobile striker is thus retained by the two hooks at the same time, and its mobility thwarts the movement of the sash when there is an attempted break-in by lifting the sash.

The movement of the striker is of course reversible to allow the unlocking of the device, that is to say to pass from said active locking position to said passive position.

According to a preferred embodiment of the invention, said mobile and fixed hooks are oriented in opposition, that is to say that the curvature of the curved part forming the head of one of the hooks is directed in the opposite direction to the curvature of the curved part forming the head of the other hook. In this embodiment, said hooks are preferably arranged either substantially back to back or substantially face to face. By "substantially" is meant that the hooks may be slightly offset from each other, in the transverse direction.

In a particular case of a configuration of opposed hooks, said fixed and mobile hooks are substantially back to back, the upper hook being mobile and facing upwards and the lower hook being fixed and facing downwards.

In a particularly advantageous case of the invention, said fixed hook is the lower hook of said device, and said movable hook is the upper hook of said device. This configuration makes it possible to better distribute the retaining points of the strike around the hooks.

According to a preferred embodiment of the invention, said locking device comprises a striker stopper to hold said striker in said passive position, in other words in its initial position when said device is unlocked.

Preferably according to the invention, said locking device comprises at least one means for adjusting the position of said keeper according to the position of the hooks facing it. Said adjustment can thus be carried out after installation of the sash, the closing post of which is associated with said corresponding male part of said device. Advantageously, said stopper is configured to also perform the function of said adjustment means.

In addition, according to a particular embodiment of the invention, said device may comprise at least one chamfer on at least one of said hooks as means for adjusting the position of the striker so that the latter is in correspondence with said hooks . In particular, said at least one chamfer can be made on an outer portion of the curved part of said hook, this curved part usually forming the head of the hook.

According to a particular embodiment, said device comprises a box which comprises an envelope in which are arranged two support blocks which respectively hold said movable hook and said fixed hook, each hook being held in its respective support block at its end opposite to its part. curve forming its head, the support block of said movable hook being mounted so as to be able to slide integrally with said locking rod and being able to slide in the envelope of said case. In particular, said casing casing comprises a transverse lateral face comprising a through opening through which the head of each hook passes, and said face being proximal to said locking rod which comprises a through groove through which the head of each said hook protrudes .

Preferably said box which includes the hook mechanism is mechanically strong, in particular made of steel. In particular, said support blocks and said hooks are made of steel.

The invention also relates to a window, in particular a bay window, comprising a sliding sash reversibly locking along one of its uprights, called closing upright, against another upright, thanks to a locking device capable of passing reversibly from from a passive position to an active locking position, said device comprising at least one male part associated with the closing upright of the sash and comprising at least two locking hooks and a locking rod, and a female part associated with said other upright and comprising a catch receiving said locking hooks, said locking device being defined as previously, and the male part of said device being installed in said closing post so that said locking rod of the device can slide along said closing post and driving said movable hook, and the female part being installed on said other upright so that said striker faces said hooks and said striker can be slidably driven along said other upright by the movable hook of said device until said fixed hook is locked in said keeper and locks said mobile hook in said keeper to lock the closing of said opening.

In particular according to the invention, said bay comprises a frame in which is installed said opening able to slide vertically in its own plane, and said other amount is an amount of the frame. More particularly, said opening comprises a fixed frame and at least one guide rail forming a frame in which is installed said opening provided with sliding carriages making it capable of sliding vertically in its own plane along said at least one guide rail, and said other amount is an amount of the frame.

The invention also relates to a method for locking a sliding leaf according to at least one guide rail, and locking along one of its uprights, called the closing upright, against another upright, a method in which a locking device comprising at least one male part installed in said closing upright and comprising at least two locking hooks and a locking rod, and a female part mounted in said other upright and comprising a catch receiving said locking hooks, and said locking rod being adapted to slide under the action of a control member to cause said device to pass reversibly from a passive position to an active locking position in which said two hooks are locked in said keeper. According to the invention, said method is characterized in that said locking device used is the locking device as defined above.

In particular, in said locking method according to the invention, to pass from a passive position to an active locking position, the mobile and fixed hooks are introduced into the striker plate once said opening closing post has been brought into sliding against said other upright, said position of said striker in said other upright having been adjusted in a prior step carried out during installation of the sash on said guide rails so that said striker faces said hooks whose respective heads are projecting from said sash closing upright when said locking rod is in the passive position, the head of said movable hook being positioned in said strike plate, substantially in contact with said striker, then said locking rod is slidably actuated along said closing upright by jointly driving in sliding said mobile hook which itself in contact with said striker integrally drives said striker in sliding along said other upright until said fixed hook is blocked in said keeper, said hooks being both thus blocked in said keeper on reaching the active locking position.

More particularly in said locking method according to the invention, when said locking rod is in the passive position, the head of said movable hook is positioned in said keeper, which comprises upper and lower side walls delimiting an open recessed zone receiving the heads of hook, substantially in internal contact with the upper side wall of said keeper, while the head of the movable hook is positioned in the keeper in a manner spaced internally from the lower side wall of said keeper. In the active locking position, the head of the mobile hook remains in internal contact with the upper side wall of the striker and the head of the fixed hook is then in internal contact with the lower side wall of the striker.

Other particularities and advantages of the invention will become apparent on reading the description given below of an embodiment of the invention, by way of indication but not limitation, with reference to the appended figures and for which:

shows in a three-quarter perspective view, a first embodiment of a locking device according to the invention, in a passive position;

shows a longitudinal sectional view of the device illustrated in FIG. 1 according to the invention, in the initial locking position in which the hooks of the mechanism are engaged in the keeper;

represents a view in longitudinal section of the device illustrated in FIG. 1 according to the invention, in an intermediate position between the passive position and the locking position;

represents a view in longitudinal section of the device illustrated in FIG. 1 according to the invention, in the locking position;

illustrates an embodiment of the male part of a device like that illustrated in Figures 1 to 4, in a partially exploded perspective view;

illustrates an embodiment of the female part of a device like that illustrated in Figures 1 to 4, in an exploded perspective view;

illustrates another embodiment of the male part of a locking device according to the invention, in a perspective view;

illustrates another embodiment of the male part represented in FIG. 7A, in an exploded perspective view;

schematically illustrates an installation of a locking device according to the invention in a sash post and a frame post.

In the rest of the description, reference is made to the L,V,T trihedron shown in the figures, which respectively defines the longitudinal axis, the vertical axis and the transverse axis for a bay window which is usually installed in a vertical plane.

The notions of front and rear, lower or upper, relating to the locking device comprising a locking rod and which will be described, are defined with respect to their position of use for a bay window comprising an opening sliding vertically in its own plane and locking against another upright such as a frame upright. The notion of front is defined for the sash relative to the sash jamb, called closing jamb, carrying the locking means (male part) coming against the other jamb such as a frame jamb, and the notion rear is defined with respect to the upright opposite said closing upright.

In other words, according to the example, the longitudinal axis L corresponds to the sliding direction of the leaf in the frame, the vertical axis V corresponds to the sliding direction of the locking rod, and the transverse axis T corresponds to the transverse direction of the opening.

It will be understood that, without departing from the context of the invention, the sash can be oriented differently with respect to the fixed frame, for example so that the sash slides in a vertical direction and the rod then slides along the upright. closure in the longitudinal direction.

Identical references may be used from one figure to another to designate identical or similar elements.

Figures 1 to 4 show a perspective view for Figure 1 and longitudinal sectional views in a vertical median plane (LV plane) for Figures 2 to 3, of a first embodiment of a locking device of 'a sliding leaf in its own plane, according to the invention, and which follow the progression of the locking mechanism passing from a passive position to the final locking position. In these figures, only the part of the device associated with the sash closing upright (amount not shown) which forms the male part of the device is shown, and the part of the device associated with the frame upright (amount not shown) which forms the female part of the device. These Figures 1 to 4 will also be described with reference to Figures 5 and 6 which illustrate in exploded view respectively the male part and the female part of the device, and also with reference to Figure 8 which illustrates in cross section, in the plane LT, an example of implantation of the locking device on a closing post M of the sash and on a frame post D partially shown, the locking hooks of the male part being engaged in the keeper forming the female part.

FIG. 1 represents, according to a three-quarter and side perspective view, a locking device comprising a part 1, called the male part of the device, capable of being fixed by means of the counter-plate 3 and the fixing screws 31, 32 on the front face of the closing upright M, i.e. the front upright, of a sliding sash, and a part 2, called the female part of the device, capable of being joined to the amount of the frame D in which the sash is installed, to face part 1, and in order to be able to lock the sliding leaf by bringing it along the longitudinal direction L, against said amount of the frame (FIG. 8).

The male part 1 associated with the sash conventionally comprises a locking rod 10 capable of sliding vertically (direction V) along said sash upright M. This locking rod is associated with a set of two locking hooks 110, 111 , one being fixed, and the other movable integrally with said rod. According to the example shown, the mechanism of the locking hooks 110, 111 is included in an envelope 115 of a box 11, the head of said hooks projecting through said rod 10. The functional box 11 is arranged so that the one of the hooks either fixed, or according to the example the bottom hook 110, while the other hook, or the top hook 111, is configured to be movable to be driven in translation by the sliding of said rod 10.

The female part 2 associated with the amount of the frame according to the example, constitutes the keeper of the locking device in which the hooks of the male part 1 will engage and lock, that is to say be blocked. female part 2 is configured so that the mobile hook 111 of the mechanism of the male part 1 can drive said striker during the sliding of the locking rod 10 until the fixed hook 110 is blocked in said striker.

During unlocking, that is to say during the passage from the active locking position to the passive position, the movable hook 111 is driven in translation in the opposite direction by the sliding of said locking rod towards the passive position, and releases the holding of said movable latch which can thus move in translation along the upright with which it is associated to return to the passive position by releasing the fixed hook.

Figure 5 illustrates in an exploded view, a non-limiting embodiment of the male part with hooks 1 of the locking device illustrated in Figures 1 to 4, associated with the sash post.

According to this embodiment, said male part 1 comprises the locking rod 10 which is able to slide on itself along the closure post, under the action of a control member, not shown. It also includes the hook mechanism which is inserted into a through casing 115 of the functional box 11, that is to say open at its two opposite vertical transverse faces, so as to contain the assembly of said hooks 110, 111, and allow the heads of the hooks to pass towards the through guide slot 1000 that comprises said locking rod 10, the opening 1150 of the transverse face of the casing 115 of said casing coming into correspondence with said slot 1000 of the rod. In addition, said casing 115 of housing 11 allows movement in translation of mobile hook 111. The assembly of said hooks 110, 111 comprises two support blocks 112, 113, holding said hooks: a lower support block 113 which has an overall substantially U-shaped and between the branches of which the fixed hook 110 is held, and an upper support block 112 which has an overall substantially U-shaped shape oriented downwards and between the branches of which the mobile hook 111 is held. A side wall portion 1130, 1120 respective of these two blocks 113, 112 is removable to allow the introduction of the respective hook. These two support blocks 112, 113 are therefore arranged one above the other, and moreover they are secured to a transverse bottom plate 114 divided into two separable lower 1440 and upper 1441 parts, movable in an oblong slot. that said casing 115 of the box comprises in the wall opposite to that 1150 comprising the opening through which the hook heads pass. The lower plate part 1440 supports and the lower block 113 supports the fixed hook 110, and the upper plate part 1441 supports the upper block 112 supports the mobile hook 111, so that said two hook support blocks are also separable. The upper block 112 supporting the mobile hook 111 is secured to said locking rod 10 by a fixing screw 1001 which is inserted into a fixing hole 1002 drilled in said rod to be screwed into a receiving hole 118 in the upper part of said block upper support 112, so that said upper hook 111 supported by said upper block is made integrally movable with said locking rod 10.

Said fixed hook 110 is mounted longitudinally so that its arm rests in said lower support block 113, its curved part forming its head 1100 being oriented downwards out of said support block, and its arm ending, opposite its head , by one end 1101 oriented vertically, at more or less 90 degrees relative to the generally horizontal longitudinal portion of said arm, and directed downwards.

Said mobile hook 111 is mounted longitudinally so that its arm rests in said upper support block 112, its curved part forming its head 1110 being oriented upwards outside of said support block, and the opposite end 1111 of its arm being oriented vertically, at approximately 90 degrees from the generally horizontal longitudinal portion of the hook arm, and directed upwards.

Furthermore said device comprises two side flat rods 116.117. One of the flat rods 116 is arranged vertically on one of the sides of said support blocks, in an external lateral groove 1131 of the removable lateral portion 1130 of the lower support block 113 which holds said fixed hook 110, and in an external lateral groove 1121 of the upper support block 112, said outer grooves 1131, 1121 being abutted. The other flat rod 117 is arranged vertically on the other side of said support blocks, in an external lateral groove 1123 of the removable lateral portion 1120 of the upper support block 112 and in an external groove, not visible in the figure, of the support block lower 113, abutting with said upper groove 1123. These flat rods 116, 117 on the one hand thus maintain the support blocks of the hooks when they are introduced into the casing 115 of the casing 11, and on the other hand they guide the movement of the upper block 112 supporting the movable hook 111 in said housing, when said upper block 112 is driven by the locking rod 10 in sliding.

FIG. 6 illustrates, in an exploded view, a non-limiting embodiment of the female part 2 of the device illustrated in FIGS. 1 to 4, part associated with the frame upright, and capable of cooperating with the male part 1 illustrated by FIG. 5 which has just been described.

According to this embodiment, said female part 2 comprises a first element 20, called the front element, pierced with two through inlet orifices 200, 201 allowing the introduction respectively of said hooks 110, 111 of the male part 1 into the striker. . This front element 20 is fixed to a second element 21, called bottom element, comprising spaces receiving the respective head of said hooks 110, 111. Between this front element 20 and this bottom element 21 there is a third element 22 , said guide element, arranged so that the block formed of the first and second elements 20, 21, said movable block, can be movable in vertical translation with respect to this third central crossing element 22. For this purpose, according to the example , this guide element 22 comprises a vertical through slot 222 for guiding said movable block by guiding the fixing studs 26, 27, 28 receiving three fixing screws 260, 270, 280 introduced into the facade element 20 to assemble the elements 20, 21 of said movable block. Retaining housings 23, 24 (visible in the sectional figures 2 to 4) of the hooks 110, 111 are formed respectively by internal housings made by the receiving spaces of the head of the hooks corresponding according to the example to the hollow spaces 210, 211 between the studs 26, 27, 28 of the bottom element 21, in cooperation with the guide element 22, and through the inlet orifices 200, 201 of the front element 20 into which the hooks are inserted 110, 111, these inlet orifices having an opening of a size smaller than that of the internal housings of the hooks, in order to be able to hang there and retain the head of the hooks as shown in Figures 2 to 4.

In addition, said female part 2 of the device represented in FIG. 6 comprises a stopper 25 limiting the travel of the striker. Said stopper according to the example comprises a screw 251 inserted in an internally threaded stud 250. The position of the striker stopper is determined according to the position of the fixed hook of the hook mechanism of the male part of the device. This stopper is adjusted during the installation of the sash on its guide rail, the sliding carriages having been installed under the sash, to fix the stroke height of the striker according to the configuration of the sash. sash in the fixed frame, in particular depending on the height position at which the hooks are located. In the particular case of the example of the hook mechanism represented in FIG. 5, the stopper 25 is placed in the lower part of the keeper 2 to prevent the keeper from descending when it is in the inactive position, that is to say i.e. not retained by the hooks, when the closure of the sash is unlocked. Said stop 25 prevents the keeper from descending beyond the initial position of the mobile hook.

More advantageously according to the example, each hook has a chamfer 1102, 1112 on a portion of the curved part forming the head of the hook. These chamfers form adjustment means which facilitate the adjustment of the relative positions of the striker plate and the hooks, the sliding carriages thus being able to be installed under the sash and adjusted in particular in height according to the height of the sash in the fixed frame. .

In Figure 2, the locking device is in the initial locking position. In this configuration, the respective heads 100, 1110 of the locking hooks 110, 111 of the male part 1 of the device associated with the sash post have simply been engaged in their respective receiving housings 23, 24 that the striker comprises (the part female 2), following the introduction of said hooks through the inlet orifices 200, 201 of the front element 20 of said keeper, under a thrust H applied to said sash in the longitudinal direction L sliding towards the amount of frame facing each other, said leaf being moved in longitudinal translation in the frame of the frame in a manner known per se.

In Figure 3, the locking device is in the intermediate position between its passive position and its locking position, and in Figure 4 it is in the locking position in which the hooks are blocked. Under the action of a control member not shown, said locking rod 10 is driven in a translational movement in the vertical direction V and according to the example (arrow F) which jointly drives the mobile hook 111 as explained for the FIG. 2, and whose head 1110 is blocked in abutment against the upper part of its housing 24 in the striker and against the wall portion 2020 of its inlet 202 in the striker. According to the example, said locking rod 10 moves together said upper support block 112 with said mobile hook 111, by the end of the arm of said mobile hook. The continuation of the vertical translational movement of said locking rod continues to drive the movable hook 111 upwards (arrow F) and whose head 1110 drives said movable block of the striker plate, formed by the movable elements 20, 21, until to block the movement of said movable block 20, 21 of the female part 2 by the fixed hook 110, or in other words to lock the head of the fixed hook 110 in its housing 23 of the striker plate and against the internal face of the wall portion 2010 of its inlet 201 in the keeper, as shown in Figure 4.

Once the closing of the sash has been locked by the locking device according to the invention, if a malicious individual tries to lift the sash to unlock it, the mobile hook will try to cause the striker and continue to block the two hooks fixed and mobile at the same time in the striker plate so that it will be impossible to break the lock. The two fixed and mobile hooks thus blocked in said keeper are difficult to dislodge by a malicious maneuver, the two hooks continuing to be retained at the same time in the mobile keeper. By way of comparison and illustration, on average the resistance force is less than 100 daN for a hook locked in a non-moving keeper of a conventional locking device, whereas for a hook of the locking device with a movable keeper according to invention, the resistance force can reach approximately 350 to 400 daN.

Another embodiment of the male part 1' of the locking device is represented in FIGS. 7A and 7B, in which the locking hooks 110', 111' can be mounted directly on the locking rod 10'. The locking rod 10′ is formed by a slider installed in a front profile 100′ with a U-section in which said slider is able to slide. Such a profile 100′ can conventionally constitute a headrest of a type of closing system for an opening. The fixed hook 110' is inserted into said front profile 100', from the outer face of said profile, by its end 1101' opposite its head 1100', through an orifice 1103' drilled in the wall of said profile 100', to be retained in another orifice 1020' pierced in a retaining plate 102' which is positioned under the internal face of the wall of said profile 100'. Said front profile 100' further comprises a through guide slot 1001' through which passes the head 1110' of said movable hook 111' fixed to said sliding rod 10'. Said movable hook 111' is secured to said sliding rod 10' by inserting its end 1111', opposite its head 1110', into an orifice 1010' drilled in the wall of said rod. Said locking rod 10' comprises an oblong slot 106' in which set places the retaining plate 102' of the fixed hook 110' so that said rod 10' can slide in the front profile 100'. In addition, two fixing elements 104', 105' between the front section 100' and the said sliding rod 10' are inserted, for one 105', into the oblong slot 106' of the said sliding rod and into a through hole 103 'drilled in correspondence in the wall of the profile, and for the other 104' in a second oblong through slot 107' of said sliding rod and an orifice 108' pierced in correspondence in the wall of the profile. Said locking rod 10′ is thus able to slide in the U-profile 100′ and to drive the mobile hook 111′ to slide along the guide slot 1001′ of the profile. This guide slot further determines the stroke length of the movable keeper when the locking hooks are engaged therein. The movable keeper may be that represented in FIG. 6, or according to another embodiment.

In addition, in general, said locking device according to the invention may comprise a lock box, adapted to be mounted on the opening, which contains a force transmission mechanism suitable for transforming the movement of a maneuver of said locking rod, in a translation of said rod along said sash post.

In general, the opening is made movable by sliding in its own plane in a manner known per se, and conventionally thanks to roller carriages, or even ball bearings, installed under the opening and which roll on a guide rail. In another possible configuration, the carriages and the guide rail can be installed in the upper part of the sash.

The hooks of the locking mechanism are shown without limitation according to these two embodiments described in examples as having heads oriented in opposite directions and back to back, embodiments where the two hook heads are oriented facing each other being nevertheless possible.

The examples have been described for a bay window comprising an opening sliding vertically in its own plane and locking against a frame upright, but not limiting the invention. Indeed the opening could be locked against another amount such as another amount of the opening like an amount of another leaf that would include the opening or an amount of a fixed panel that would include the opening.

Claims (11)

Device for locking a sash with a closure post (M) closing against another post (D), able to pass reversibly from a passive position to an active locking position, said device comprising at least one male part ( 1, 1'), able to be associated with the closing upright (M) of the opening, comprising at least two locking hooks (110, 111, 110', 111') and a locking rod (10, 10 '), and a female part (2), adapted to be associated with said other upright (D), comprising a catch receiving said locking hooks, and said locking rod being adapted to slide to reversibly pass said device from one passive position to an active locking position in which said two hooks are locked in said keeper, characterized in that one of said hooks is fixed (110, 110') and the other hook (111, 111') is movably mounted integrally with the sliding of said locking rod (10, 10'), and said keeper (2, 20, 21, 22) is configured able to slide and integrally with the movement of said movable hook (111, 111') when said movable hook is engaged in said mess. Device according to Claim 1, characterized in that the said mobile (111, 111') and fixed (110, 110') hooks are oriented in opposition, the curvature of the curved part forming the head (1110, 1110') of the one of the hooks (111, 111') being directed in the opposite direction to the curvature of the curved part forming the head (1100, 1100') of the other hook (110, 110'). Device according to one of Claims 1 to 2, characterized in that it comprises a striker stopper (25) to hold the said striker in the said passive position. Device according to one of Claims 1 to 3, characterized in that it comprises at least one means for adjusting the position of the said keeper according to the position of the hooks facing it. Device according to claims 3 and 4, characterized in that said stopper (25) is configured to additionally perform the function of said adjustment means. Device according to one of Claims 4 to 5, characterized in that it further comprises at least one chamfer (1112, 1102) on at least one of the said hooks as means for adjusting the position of the striker. Device according to one of Claims 1 to 6, characterized in that it comprises a box (11) which comprises an envelope (115) in which are arranged two support blocks (112, 113) which respectively hold the said movable hook (111 ) and said fixed hook (110), each hook being held in its respective support block at its end opposite to its curved part forming its head (1110, 1100), the support block (112) of said mobile hook being movably mounted integrally to the sliding of said locking rod (10) and being able to slide in the casing (115) of said box. Device according to Claim 7, characterized in that the said casing casing comprises a transverse lateral face comprising a through opening (1150) through which the head (1110, 1100) of each hook passes, and the said face being proximal to the said rod of lock (10) which comprises a through groove (1000) through which the head of each said hook protrudes. Bay, in particular a bay window, comprising a sliding sash reversibly locking along one of its uprights, called closing upright (M), against another upright (D), thanks to a locking device capable of passing reversibly from 'a passive position to an active locking position, said device comprising at least one male part (1, 1') associated with the closing post (M) of the sash and comprising at least two locking hooks (110, 111, 110', 111') and a locking rod (10, 10'), and a female part (2) associated with said other upright (D) and comprising a catch receiving said locking hooks, characterized in that said locking device is defined according to one of claims 1 to 8, and the male part of the said device being installed in the said closing post (M) so that the said locking rod (10, 10') of the device can slide along the said post closing and driving said movable hook (111, 111'), and the female part being installed on said other upright (D) so that said striker plate (2, 20, 21, 22) faces said hooks and said striker plate can be slidably driven along said other upright by the movable hook of said device until said fixed hook (110, 110') is locked in said keeper and locks said movable hook in said keeper to lock the closure of said sash. Opening according to claim 9, characterized in that it comprises a fixed frame and at least one guide rail forming a frame in which is installed said opening provided with sliding carriages making it able to slide vertically in its own plane along said at least a guide rail, and said other upright is an upright of the frame (D). Method for locking a sliding leaf according to guide rails, and locking along one of its uprights, called closing upright, against another upright, in which a locking device is used comprising at least one male part ( 1, 1') installed in said closure post (M) and comprising at least two locking hooks (110, 111, 110', 111') and a locking rod (10, 10'), and a female part ( 2) mounted in said other upright (D) and comprising a catch (2, 20, 21, 22) receiving said locking hooks, and said locking rod being adapted to slide under the action of a control member to reversibly passing said device from a passive position to an active locking position in which said two hooks (110, 111, 110', 111') are locked in said keeper, characterized in that said locking device used is the lock as defined in one of claims 1 to 8.